Constant of Proportionality Definitions

The constant of proportionality can be found by finding the __________  _____________.

• unit rate

• ratio rate

• proportion answer

• rational number

The constant of proportionality in the equation y = ½x is _______. 

• x

• y

• 1/2

• 2

A proportional relationship can be written as an equation in the form ____ = _____  _____

• y = k+x

• y = k-x

• y = kx

• y = k/x

Identify the constant of proportionality.

• k = 2

• k = 4

• k = 1/2

• k = 1/4

• none (not proportional)

Identify the constant of proportionality.

• k = 5

• k = 1/5

• k = 1

• k = 2.5

• none (not proportional)

Identify the constant of proportionality.

• k = 25

• k = 50

• k = 100

• k = 1/50

• none (not proportional)

Which statement below accurately represents the graph?

• $100 is earned for each hour worked

• $200 earned for every 2 hours worked
  is the unit rate

• $500 is earned for every 8 hours worked

• $300 is earned after working 4 hours

Write the equation for the table given.

• y = 16x

• y=8x

• y=12x

Identify the constant of proportionality.

• k = 1/0.45

• k = 0.45

• k = -0.45

• k = -1/0.45

• none (not proportional)

Write an equation for this relationship.

• y = 18x

• y = 18.50x

• y = 22.50x

• y = 22x